if getDx1 have no value, which means it is a null, then you would expect a NumberFormatException
yes... yes... that must be why!!
almost a hacker!!! 
Computer Science Canada Converting from string to int |
| Author: | Junaid2pac [ Wed Jan 02, 2008 11:33 pm ] | ||
| Post subject: | Converting from string to int | ||
Gives me the following error message, but why: Exception in thread "AWT-EventQueue-0" java.lang.NumberFormatException: null at java.lang.Integer.parseInt(Integer.java:415) at java.lang.Integer.parseInt(Integer.java:497) at Ball.<init>(Junaid_Java_ISU.java:158) at GameFrame$2.actionPerformed(Junaid_Java_ISU.java:94) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236) at java.awt.Component.processMouseEvent(Component.java:6038) at javax.swing.JComponent.processMouseEvent(JComponent.java:3265) at java.awt.Component.processEvent(Component.java:5803) at java.awt.Container.processEvent(Container.java:2058) at java.awt.Component.dispatchEventImpl(Component.java:4410) at java.awt.Container.dispatchEventImpl(Container.java:2116) at java.awt.Component.dispatchEvent(Component.java:4240) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916) at java.awt.Container.dispatchEventImpl(Container.java:2102) at java.awt.Window.dispatchEventImpl(Window.java:2429) at java.awt.Component.dispatchEvent(Component.java:4240) at java.awt.EventQueue.dispatchEvent(EventQueue.java:599) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160) at java.awt.EventDispatchThread.run(EventDispatchThread.java:121) |
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| Author: | HeavenAgain [ Thu Jan 03, 2008 12:00 am ] |
| Post subject: | RE:Converting from string to int |
if getDx1 have no value, which means it is a null, then you would expect a NumberFormatException yes... yes... that must be why!! almost a hacker!!! |
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